<div class="row clearfix">
  <div class="col-lg-6 col-md-12 col-sm-12 left-column">
    <div class="content_block_3">
      <div class="content-box">
        <h3>联系我们</h3>
        <div class="support-box">
          <div class="icon-box"><i class="fas fa-phone"></i></div>
          <span>电话</span>
          <h3><a href="">010-85132266</a></h3>
        </div>
      </div>
    </div>
  </div>
  <div class="col-lg-6 col-md-12 col-sm-12 right-column">
    <div class="content_block_4">
      <div class="content-box">
        <h3>通过邮箱</h3>
        <form action="index.html" method="post" class="subscribe-form">
          <div class="form-group">
            <input type="email" name="email" placeholder="你的邮箱" required="">
            <button type="button" class="theme-btn-one">立即发送<i class="icon-Arrow-Right"></i></button>
          </div>
        </form>
      </div>
    </div>
  </div>
</div>